761861838 has 16 divisors (see below), whose sum is σ = 1524687696. Its totient is φ = 253793280.

The previous prime is 761861833. The next prime is 761861839. The reversal of 761861838 is 838168167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (761861833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29683 + ... + 49038.

It is an arithmetic number, because the mean of its divisors is an integer number (95292981).

Almost surely, 2^761861838 is an apocalyptic number.

761861838 is an abundant number, since it is smaller than the sum of its proper divisors (762825858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

761861838 is a wasteful number, since it uses less digits than its factorization.

761861838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80339.

The product of its digits is 387072, while the sum is 48.

The square root of 761861838 is about 27601.8448296486. The cubic root of 761861838 is about 913.3251286255.

It can be divided in two parts, 7618618 and 38, that added together give a triangular number (7618656 = T₃₉₀₃).

The spelling of 761861838 in words is "seven hundred sixty-one million, eight hundred sixty-one thousand, eight hundred thirty-eight".